diff --git a/backend/.env b/backend/.env new file mode 100644 index 0000000..f5ac799 --- /dev/null +++ b/backend/.env @@ -0,0 +1,4 @@ +PORT=8000 +MONGO_URI=mongodb://127.0.0.1:27017/notesDB +NODE_ENV=development +UPLOAD_DIR=uploads/ diff --git a/backend/connector/database.connector.js b/backend/connector/database.connector.js new file mode 100644 index 0000000..85c8835 --- /dev/null +++ b/backend/connector/database.connector.js @@ -0,0 +1,23 @@ +const mongoose = require("mongoose"); + +const database = async () => { + const MONGO_URI = process.env.MONGO_URI; + + if (!MONGO_URI) { + console.error("Missing MONGO_URI in .env"); + process.exit(1); + } + + try { + await mongoose.connect(MONGO_URI, { + useNewUrlParser: true, + useUnifiedTopology: true, + }); + console.log("Connected to MongoDB"); + } catch (error) { + console.error("MongoDB connection failed:", error.message); + process.exit(1); + } +}; + +module.exports = database; diff --git a/backend/controllers/notes.controller.js b/backend/controllers/notes.controller.js new file mode 100644 index 0000000..5d43ed3 --- /dev/null +++ b/backend/controllers/notes.controller.js @@ -0,0 +1,30 @@ +const { successResponse, errorResponse } = require("../utils/response"); +const { + handleMultipleFileUpload, + createNoteWithAttachment, +} = require("../services/notes.service"); +const { asyncHandler } = require("../utils/asyncHandler"); + +exports.createNote = asyncHandler(async (req, res) => { + // File + body handled together + const fileMetadataArray = handleMultipleFileUpload(req); + const noteData = { + title: req.body.title, + content: req.body.content, + createdBy: req.body.createdBy, + }; + + // const savedNote = await createNoteWithAttachment(noteData, fileMetadataArray); + const savedNote = { + ...noteData, + attachments: fileMetadataArray, + _id: "mock-id-123", + uploadedAt: new Date(), + }; //remove this(23-28) line when implementing actual DB save + console.log("Saved Note:", savedNote); + return successResponse( + res, + savedNote, + "Note created successfully with attachment" + ); +}); diff --git a/backend/index.js b/backend/index.js index 0352d61..df58c03 100644 --- a/backend/index.js +++ b/backend/index.js @@ -1,7 +1,34 @@ -const express = require('express') -const app = express() -const port = 8000 +require("dotenv").config(); +const path = require("path"); +const express = require("express"); +const notesRouter = require("./routes/notes.route"); +const database = require("./connector/database.connector"); +const { errorHandler } = require("./middleware/errorHandler.middleware"); +const app = express(); +const cors = require("cors"); +const port = process.env.PORT ?? 8000; +//CORS setup +app.use( + cors({ + origin: "http://localhost:3000", // React app + methods: ["GET", "POST", "PUT", "DELETE"], + credentials: true, + }) +); +// Parse JSON bodies +app.use(express.json()); +// Serve uploaded files statically (for viewing/downloading) +app.use("/uploads", express.static(path.join(__dirname, "uploads"))); + +// Notes + file-upload routes +app.use("/api/notes", notesRouter); + +// Global error handler +app.use(errorHandler); +//database connection is established in database.connector.js +// database(); +// Start server app.listen(port, () => { - console.log(`Example app listening on port ${port}`) -}) + console.log(`Example app listening on port ${port}`); +}); diff --git a/backend/middleware/errorHandler.middleware.js b/backend/middleware/errorHandler.middleware.js new file mode 100644 index 0000000..5f5e336 --- /dev/null +++ b/backend/middleware/errorHandler.middleware.js @@ -0,0 +1,10 @@ +const { errorResponse } = require("../utils/response"); + +exports.errorHandler = (err, req, res, next) => { + console.error("Global Error:", err); + + const statusCode = err.statusCode || 500; + const message = err.message || "Internal Server Error"; + + return errorResponse(res, message, statusCode, err); +}; diff --git a/backend/middleware/notes.validate.js b/backend/middleware/notes.validate.js new file mode 100644 index 0000000..ad49cc2 --- /dev/null +++ b/backend/middleware/notes.validate.js @@ -0,0 +1,27 @@ +const { errorResponse } = require("../utils/response"); + +exports.validateBody = (schema) => (req, res, next) => { + try { + console.log("Incoming body before validation:", req.body); + + if (!req.body) { + return res.status(400).json({ message: "Request body is missing" }); + } + + const data = { + title: req.body.title || "", + content: req.body.content || "", + createdBy: req.body.createdBy || "", + }; + + const parsed = schema.parse(data); + console.log("Zod Validation Success", parsed); + next(); + } catch (error) { + console.error("Zod Validation Error Details:", error); + return res.status(400).json({ + message: "Invalid input", + errors: error.errors || [], + }); + } +}; diff --git a/backend/middleware/upload.middleware.js b/backend/middleware/upload.middleware.js new file mode 100644 index 0000000..f10f31f --- /dev/null +++ b/backend/middleware/upload.middleware.js @@ -0,0 +1,40 @@ +const multer = require("multer"); +const path = require("path"); + +// Storage config – save files in /uploads folder +const storage = multer.diskStorage({ + destination: function (req, file, cb) { + cb(null, path.join(__dirname, "..", "uploads")); + }, + filename: function (req, file, cb) { + const uniqueSuffix = Date.now() + "-" + Math.round(Math.random() * 1e9); + cb(null, uniqueSuffix + "-" + file.originalname); + }, +}); + +// Allowed file types +const allowedTypes = [ + "application/pdf", + "application/vnd.openxmlformats-officedocument.wordprocessingml.document", + "application/vnd.openxmlformats-officedocument.presentationml.presentation", + "image/jpeg", + "image/png", +]; + +// Filter invalid file types +function fileFilter(req, file, cb) { + if (allowedTypes.includes(file.mimetype)) { + cb(null, true); + } else { + cb(new Error("Unsupported file type"), false); + } +} + +// 10 MB limit +const upload = multer({ + storage, + fileFilter, + limits: { fileSize: 10 * 1024 * 1024 }, +}); + +module.exports = upload; diff --git a/backend/models/notes.model.js b/backend/models/notes.model.js new file mode 100644 index 0000000..fdd2297 --- /dev/null +++ b/backend/models/notes.model.js @@ -0,0 +1,24 @@ +const mongoose = require("mongoose"); + +const AttachmentSchema = new mongoose.Schema( + { + originalName: { type: String, required: true }, + mimeType: { type: String, required: true }, + size: { type: Number, required: true }, + url: { type: String, required: true }, + }, + { _id: false } // prevent extra _id in array +); + +const NoteSchema = new mongoose.Schema( + { + title: { type: String, required: true }, + content: { type: String, required: true }, + createdBy: { type: String, required: true }, // can hold professor’s ID/name + uploadedAt: { type: Date, default: Date.now }, + attachments: [AttachmentSchema], + }, + { timestamps: true } +); + +module.exports = mongoose.model("Note", NoteSchema); diff --git a/backend/package-lock.json b/backend/package-lock.json index 804f93b..1f55466 100644 --- a/backend/package-lock.json +++ b/backend/package-lock.json @@ -9,7 +9,39 @@ "version": "1.0.0", "license": "ISC", "dependencies": { - "express": "^5.1.0" + "cors": "^2.8.5", + "dotenv": "^17.2.3", + "express": "^5.1.0", + "mongoose": "^8.19.3", + "multer": "^2.0.2", + "zod": "^4.1.12" + }, + "devDependencies": { + "nodemon": "^3.1.10" + } + }, + "node_modules/@mongodb-js/saslprep": { + "version": "1.3.2", + "resolved": "https://registry.npmjs.org/@mongodb-js/saslprep/-/saslprep-1.3.2.tgz", + "integrity": "sha512-QgA5AySqB27cGTXBFmnpifAi7HxoGUeezwo6p9dI03MuDB6Pp33zgclqVb6oVK3j6I9Vesg0+oojW2XxB59SGg==", + "license": "MIT", + "dependencies": { + "sparse-bitfield": "^3.0.3" + } + }, + "node_modules/@types/webidl-conversions": { + "version": "7.0.3", + "resolved": "https://registry.npmjs.org/@types/webidl-conversions/-/webidl-conversions-7.0.3.tgz", + "integrity": "sha512-CiJJvcRtIgzadHCYXw7dqEnMNRjhGZlYK05Mj9OyktqV8uVT8fD2BFOB7S1uwBE3Kj2Z+4UyPmFw/Ixgw/LAlA==", + "license": "MIT" + }, + "node_modules/@types/whatwg-url": { + "version": "11.0.5", + "resolved": "https://registry.npmjs.org/@types/whatwg-url/-/whatwg-url-11.0.5.tgz", + "integrity": "sha512-coYR071JRaHa+xoEvvYqvnIHaVqaYrLPbsufM9BF63HkwI5Lgmy2QR8Q5K/lYDYo5AK82wOvSOS0UsLTpTG7uQ==", + "license": "MIT", + "dependencies": { + "@types/webidl-conversions": "*" } }, "node_modules/accepts": { @@ -25,6 +57,46 @@ "node": ">= 0.6" } }, + "node_modules/anymatch": { + "version": "3.1.3", + "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz", + "integrity": "sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==", + "dev": true, + "license": "ISC", + "dependencies": { + "normalize-path": "^3.0.0", + "picomatch": "^2.0.4" + }, + "engines": { + "node": ">= 8" + } + }, + "node_modules/append-field": { + "version": "1.0.0", + "resolved": "https://registry.npmjs.org/append-field/-/append-field-1.0.0.tgz", + "integrity": "sha512-klpgFSWLW1ZEs8svjfb7g4qWY0YS5imI82dTg+QahUvJ8YqAY0P10Uk8tTyh9ZGuYEZEMaeJYCF5BFuX552hsw==", + "license": "MIT" + }, + "node_modules/balanced-match": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz", + "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==", + "dev": true, + "license": "MIT" + }, + "node_modules/binary-extensions": { + "version": "2.3.0", + "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz", + "integrity": "sha512-Ceh+7ox5qe7LJuLHoY0feh3pHuUDHAcRUeyL2VYghZwfpkNIy/+8Ocg0a3UuSoYzavmylwuLWQOf3hl0jjMMIw==", + "dev": true, + "license": "MIT", + "engines": { + "node": ">=8" + }, + "funding": { + "url": "https://github.com/sponsors/sindresorhus" + } + }, "node_modules/body-parser": { "version": "2.2.0", "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-2.2.0.tgz", @@ -45,6 +117,56 @@ "node": ">=18" } }, + "node_modules/brace-expansion": { + "version": "1.1.12", + "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz", + "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==", + "dev": true, + "license": "MIT", + "dependencies": { + "balanced-match": "^1.0.0", + "concat-map": "0.0.1" + } + }, + "node_modules/braces": { + "version": "3.0.3", + "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz", + "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==", + "dev": true, + "license": "MIT", + "dependencies": { + "fill-range": "^7.1.1" + }, + "engines": { + "node": ">=8" + } + }, + "node_modules/bson": { + "version": "6.10.4", + "resolved": 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"https://github.com/sponsors/ljharb" } }, + "node_modules/chokidar": { + "version": "3.6.0", + "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.6.0.tgz", + "integrity": "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==", + "dev": true, + "license": "MIT", + "dependencies": { + "anymatch": "~3.1.2", + "braces": "~3.0.2", + "glob-parent": "~5.1.2", + "is-binary-path": "~2.1.0", + "is-glob": "~4.0.1", + "normalize-path": "~3.0.0", + "readdirp": "~3.6.0" + }, + "engines": { + "node": ">= 8.10.0" + }, + "funding": { + "url": "https://paulmillr.com/funding/" + }, + "optionalDependencies": { + "fsevents": "~2.3.2" + } + }, + "node_modules/concat-map": { + "version": "0.0.1", + "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz", + "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==", + "dev": true, + "license": "MIT" + }, + "node_modules/concat-stream": 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"sha512-WxONCrssBM8TSPRqN5EmsjVrsv4A8X12J4ArBiiayv3DyyG3ZlIg6yysuuSYdZsVz3TKcTg2fd//Ujd4CHV1iA==", + "dev": true, + "license": "MIT" + }, "node_modules/unpipe": { "version": "1.0.0", "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz", @@ -823,6 +1553,12 @@ "node": ">= 0.8" } }, + "node_modules/util-deprecate": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz", + "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==", + "license": "MIT" + }, "node_modules/vary": { "version": "1.1.2", "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz", @@ -832,11 +1568,51 @@ "node": ">= 0.8" } }, + "node_modules/webidl-conversions": { + "version": "7.0.0", + "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz", + "integrity": "sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==", + "license": "BSD-2-Clause", + "engines": { + "node": ">=12" + } + }, + "node_modules/whatwg-url": { + "version": "14.2.0", + "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-14.2.0.tgz", + "integrity": "sha512-De72GdQZzNTUBBChsXueQUnPKDkg/5A5zp7pFDuQAj5UFoENpiACU0wlCvzpAGnTkj++ihpKwKyYewn/XNUbKw==", + "license": "MIT", + "dependencies": { + "tr46": "^5.1.0", + "webidl-conversions": "^7.0.0" + }, + "engines": { + "node": ">=18" + } + }, "node_modules/wrappy": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz", "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==", "license": "ISC" + }, + "node_modules/xtend": { + "version": "4.0.2", + "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz", + "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==", + "license": "MIT", + "engines": { + "node": ">=0.4" + } + }, + "node_modules/zod": { + "version": "4.1.12", + "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.12.tgz", + "integrity": "sha512-JInaHOamG8pt5+Ey8kGmdcAcg3OL9reK8ltczgHTAwNhMys/6ThXHityHxVV2p3fkw/c+MAvBHFVYHFZDmjMCQ==", + "license": "MIT", + "funding": { + "url": "https://github.com/sponsors/colinhacks" + } } } } diff --git a/backend/package.json b/backend/package.json index 0e7cfbe..105eb6d 100644 --- a/backend/package.json +++ b/backend/package.json @@ -4,12 +4,21 @@ "description": "", "main": "index.js", "scripts": { + "dev": "nodemon index.js", "test": "echo \"Error: no test specified\" && exit 1" }, "keywords": [], "author": "", "license": "ISC", "dependencies": { - "express": "^5.1.0" + "cors": "^2.8.5", + "dotenv": "^17.2.3", + "express": "^5.1.0", + "mongoose": "^8.19.3", + "multer": "^2.0.2", + "zod": "^4.1.12" + }, + "devDependencies": { + "nodemon": "^3.1.10" } } diff --git a/backend/routes/notes.route.js b/backend/routes/notes.route.js new file mode 100644 index 0000000..b8b31b1 --- /dev/null +++ b/backend/routes/notes.route.js @@ -0,0 +1,22 @@ +require("dotenv").config(); +const express = require("express"); +const router = express.Router(); +const upload = require("../middleware/upload.middleware"); +const { createNote } = require("../controllers/notes.controller"); +const { validateBody } = require("../middleware/notes.validate"); +const { noteSchema } = require("../validators/notes.validator"); +// Create note with file +router.post( + "/create", + upload.array("file", 5), + validateBody(noteSchema), + createNote +); +//same logic as above +router.post( + "/upload/note", + upload.array("file", 5), + validateBody(noteSchema), + createNote +); +module.exports = router; diff --git a/backend/services/notes.service.js b/backend/services/notes.service.js new file mode 100644 index 0000000..82e0d1a --- /dev/null +++ b/backend/services/notes.service.js @@ -0,0 +1,28 @@ +const path = require("path"); +const Note = require("../models/notes.model"); +exports.handleMultipleFileUpload = (req) => { + if (!req.files || req.files.length === 0) { + const error = new Error("No file uploaded"); + error.statusCode = 400; + throw error; + } + + return req.files.map((file) => ({ + originalName: file.originalname, + mimeType: file.mimetype, + size: file.size, + url: `${req.protocol}://${req.get("host")}/uploads/${file.filename}`, + })); +}; + +exports.createNoteWithAttachment = async (noteData, fileMetadataArray) => { + const note = new Note({ + title: noteData.title, + content: noteData.content, + createdBy: noteData.createdBy, + attachments: fileMetadataArray, + uploadedAt: new Date(), + }); + + return await note.save(); +}; diff --git a/backend/utils/asyncHandler.js b/backend/utils/asyncHandler.js new file mode 100644 index 0000000..88608e8 --- /dev/null +++ b/backend/utils/asyncHandler.js @@ -0,0 +1,3 @@ +exports.asyncHandler = (fn) => (req, res, next) => { + Promise.resolve(fn(req, res, next)).catch(next); +}; diff --git a/backend/utils/response.js b/backend/utils/response.js new file mode 100644 index 0000000..d0efd3c --- /dev/null +++ b/backend/utils/response.js @@ -0,0 +1,25 @@ +exports.successResponse = ( + res, + data = {}, + message = "Success", + status = 200 +) => { + return res.status(status).json({ + success: true, + message, + data, + }); +}; + +exports.errorResponse = ( + res, + message = "Something went wrong", + status = 500, + error = null +) => { + return res.status(status).json({ + success: false, + message, + error: error ? error.toString() : undefined, + }); +}; diff --git a/backend/validators/notes.validator.js b/backend/validators/notes.validator.js new file mode 100644 index 0000000..eb5ecf6 --- /dev/null +++ b/backend/validators/notes.validator.js @@ -0,0 +1,13 @@ +const { z } = require("zod"); + +exports.noteSchema = z.object({ + title: z + .string({ required_error: "Title is required" }) + .min(1, "Title must be at least 3 characters long"), // Changed min length to 1 to allow short titles + content: z + .string({ required_error: "Content is required" }) + .min(1, "Content must be at least 5 characters long"), // Changed min length to 1 to allow short content + createdBy: z + .string({ required_error: "CreatedBy is required" }) // Added createdBy field validation + .min(1, "Invalid name"), +}); diff --git a/frontend/components/professor/tabs/notes-tab.jsx b/frontend/components/professor/tabs/notes-tab.jsx index afe81d9..0a95162 100644 --- a/frontend/components/professor/tabs/notes-tab.jsx +++ b/frontend/components/professor/tabs/notes-tab.jsx @@ -1,52 +1,77 @@ -"use client" +"use client"; -import React from "react" +import React from "react"; -import { useState } from "react" -import { useAuth } from "@/lib/auth-context" -import { dummyNotes } from "@/lib/dummy-data" -import { Button } from "@/components/ui/button" -import { Card } from "@/components/ui/card" -import { Input } from "@/components/ui/input" +import { useState } from "react"; +import { useAuth } from "@/lib/auth-context"; +import { dummyNotes } from "@/lib/dummy-data"; +import { Button } from "@/components/ui/button"; +import { Card } from "@/components/ui/card"; +import { Input } from "@/components/ui/input"; -export default function NotesTab( {classId} ) { - const { user } = useAuth() - const [notes, setNotes] = useState(dummyNotes.filter((n) => n.classId === classId)) - const [showForm, setShowForm] = useState(false) - const [formData, setFormData] = useState({ title: "", content: "" }) - const [error, setError] = useState("") - - const handleSubmit = (e) => { - e.preventDefault() - setError("") +export default function NotesTab({ classId }) { + const { user } = useAuth(); + const [notes, setNotes] = useState( + dummyNotes.filter((n) => n.classId === classId) + ); + const [showForm, setShowForm] = useState(false); + const [formData, setFormData] = useState({ title: "", content: "" }); + const [error, setError] = useState(""); + const [files, setFiles] = useState([]); + const handleFileChange = (e) => { + setFiles([...e.target.files]); + }; + const handleSubmit = async (e) => { + e.preventDefault(); + setError(""); if (!formData.title.trim() || !formData.content.trim()) { - setError("Please fill in all fields") - return + setError("Please fill in all fields"); + return; + } + + if (files.length === 0) { + setError("Please attach at least one file"); + return; } - const newNote = { - id: Date.now().toString(), - classId, - title: formData.title, - content: formData.content, - uploadedBy: user?.name || "Unknown", - uploadedAt: new Date(), + const data = new FormData(); + data.append("title", formData.title); + data.append("content", formData.content); + data.append("createdBy", user?.name || "Unknown"); + files.forEach((file) => data.append("file", file)); + + try { + const res = await fetch("http://localhost:8000/api/notes/create", { + method: "POST", + body: data, + }); + + const result = await res.json(); + if (!res.ok) throw new Error(result.message); + + const newNote = result.data; + setNotes([...notes, newNote]); + setFormData({ title: "", content: "" }); + setFiles([]); + setShowForm(false); + } catch (err) { + setError(err.message || "Failed to upload note"); } - setNotes([...notes, newNote]) - setFormData({ title: "", content: "" }) - setShowForm(false) - } + }; const handleDelete = (noteId) => { - setNotes(notes.filter((n) => n.id !== noteId)) - } + setNotes(notes.filter((n) => n.id !== noteId)); + }; return (

Class Notes

-
@@ -55,31 +80,61 @@ export default function NotesTab( {classId} ) {
- + setFormData({ ...formData, title: e.target.value })} + onChange={(e) => + setFormData({ ...formData, title: e.target.value }) + } placeholder="e.g., Chapter 5 - Algebra Basics" className="w-full" />
- +